RAM 2500 2019–2021 — technical service bulletin

Bulletin S2121000008 · NHTSA communication 10223403 · issued May 3, 2021

Technical service bulletin

communication type

Electrical System

component

2019–2021

model years

vehicle entries

Official summary

Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P0756 ? UD Solenoid Circuit, and/or P0755 ? 2C Solenoid Circuit, Set.

Vehicles covered

2019 RAM 2500
2020 RAM 2500
2021 RAM 2500
2019 RAM 3500
2020 RAM 3500
2021 RAM 3500

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.